Heat oven to 450 degrees.
Line a rimmed baking sheet with parchment paper and spread with a small amount of olive oil.
Grate cauliflower until crumbly and place in large bowl. wave about 5 minutes, or until soft. Let cool.
Mix softened cauliflower with egg, 1/2 cup mozzarella cheese, and Parmesan cheese.
Add oregano, crushed garlic, and garlic salt.
Once combined, flatten dough into a thin, 10-inch round patty and place on prepared pizza pan.
Spray lightly with non-stick spray and bake for 15 minutes, or until golden.
Remove from oven.
Add sauce, tomatoes, selected toppings and remaining cheese.
Bake again for another 10 minutes – until melted and bubbly.
Top with basil before serving, if desired.
Enjoy guilt-free!